For the Prophet—peace and blessings be upon him—said: “Allah never decrees anything for a believer except that it is good for him, and this belongs to no one but the believer: if prosperity touches him and he thanks Allah, that is good for him; and if adversity befalls him [ق 52] and he remains patient, that too is good for him.” (1)
So when the setback that struck the Muslims in the first year resembled Uhud—and more than a year, some say two, after Uhud they were tested with the Battle of the Trench—then in this very year the Muslims were likewise tried (2) by their enemy, in a manner akin to the trial that came to the Muslims with the Prophet—peace and blessings be upon him—during the year of the Trench. This was the Campaign of the Confederates, during which Allah revealed Sūrah al-Ahzāb.
That sūrah records this expedition in which Allah granted victory to His servant—peace and blessings be upon him—and strengthened His believing forces (3); He alone routed the confederate factions (4) that had banded together against them, without any direct fighting, but through the steadfastness of the believers facing their enemy.
Within it Allah mentions the distinctive qualities of the Messenger of Allah—peace and blessings be upon him—his rights and his inviolability (5), as well as the sanctity of his Household; for he was the very heart whom Allah supported in that campaign without combat, just as He has in our present engagement (6). There too the secret of the faith’s divine support became evident, just as it had in the Battle of the Trench, and the people divided then exactly as they had divided in that earlier year. (7)